Replacing The Microprocessor (Types 7390, 7391, And 7392) - Lenovo 3000 J 7387 Hardware Maintenance Manual

Replacing the microprocessor (Types 7390, 7391, and 7392)

Note: A thermal grease syringe is required to complete the microprocessor
136
Lenovo 3000 J Series
installation. Make sure the grease syringe is available before beginning the
procedure. The FRU number for the thermal grease is 91P8835.
1. Remove the cover. See "Removing the cover" on page 114.
2. Lift the fan duct off the heat sink fan.
3. Disconnect the heat sink and fan assembly cable from the system board. See
"Identifying parts on the system board" on page 116.
4. Rotate handle 1 to release the heat sink clamp and then disengage the
clamp from the plastic retention bracket.
5. Lift the heat sink and fan assembly off the system board.